In this day and age, could it not fly 2 reds/2 whites perfectly whilst in LNAV/VNAV?
Not on an ISA+ day.
You are high by 4% of your height above the airfield for each ISA +10 degrees.
It doesn’t sound like much but it is useful to be aware that it’s going to happen. Particularly if the heat is going to cause up draughts etc as you fly over the concrete, sometimes it all adds up to a flare you’d rather forget
As usual though, the answer is to look out the window and make the picture right.